Part A
AD5175BRMZ-10
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5022 Stückzahl
- Package
- MSOP-10
- Series
- Datenerfassung
Replacement verdict
Compatible functional replacement candidate
The AD5175BRMZ-10 and AD5170BRM10 are both single-channel 10 kΩ digital potentiometers from Analog Devices in MSOP-10 packages, sharing I²C-compatible interfaces and similar operating voltage ranges. While they are not pin-for-pin identical due to differing internal architectures and feature sets, the AD5175BRMZ-10 can serve as a functional replacement candidate for the AD5170BRM10 in many non-critical applications, provided the designer validates interface timing, wiper resistance, and any reliance on the AD5170's one-time programmable (OTP) memory feature.
Interface Protocol
Validation required
Resistance Value
High match
Package Type
Validation required
Memory Architecture
Not compatible
Parts at a glance
Part B
AD5170BRM10
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2230 Stückzahl
- Package
- MSOP-10
- Series
- Datenerfassung
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5175BRMZ-10 | AD5170BRM10 | Why it matters |
|---|---|---|---|
| Number of Positions | 1024 | 256 | Determines the resolution of the digital potentiometer; a higher number of positions provides finer adjustment granularity. |
| Interface Type | I2C | I2C | Defines the communication protocol used to control the device; both use I2C, but the AD5175 supports a different command set and features. |
| Resistance Value | 10 kΩ | 10 kΩ | Sets the nominal end-to-end resistance, which affects the current and voltage range in the application circuit. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Determines compatibility with the system power rail; both support the same range, but the AD5175 has additional internal logic requirements. |
| Nonvolatile Memory | Yes (EEPROM) | No | Nonvolatile memory retains the wiper setting after power loss, which is critical for applications requiring a known startup state. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +85°C | Defines the environmental conditions under which the device can reliably operate; a wider range supports harsher industrial applications. |
| Package / Case | 10-TFSOP, 10-MSOP | 10-TFSOP, 10-MSOP | Physical footprint and pinout must match the PCB layout for direct substitutability; both share the same package. |
| Wiper Resistance | 50 Ω (typical) | 60 Ω (typical) | Affects the accuracy of the resistance setting and the voltage drop across the wiper; lower wiper resistance improves performance in low-impedance circuits. |
| Power-on Reset | Yes (midscale or zero-scale) | Yes (midscale) | Determines the wiper position at power-up, which is important for safe and predictable system initialization. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5175BRMZ-10 | AD5170BRM10 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Rheostat | Potentiometer |
| Number of Circuits | 1 | 1 |
| Number of Taps | 1024 | 256 |
| Resistance(Ohms) | 10k | 10k |
| Interface | I²C | I²C |
| Memory Type | Non-Volatile | OTP |
| Voltage - Supply | 2.7V ~ 5.5V, ±2.5V ~ 2.75V | 2.7V ~ 5.5V |
| Features | Selectable Address | Selectable Address |
| Tolerance | ±15% | ±20% |
| Temperature Coefficient(Typ) | 35ppm/°C | 35ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
Frequently asked questions
What are the key differences between the AD5175BRMZ-10 and the AD5170BRM10?
The AD5175BRMZ-10 is a single-channel, 1024-position digital potentiometer with a nominal 10 kΩ resistance, featuring an I2C interface and nonvolatile memory. The AD5170BRM10 is a single-channel, 256-position digital potentiometer with a nominal 10 kΩ resistance, featuring a 3-wire up/down interface and nonvolatile memory. The AD5175 offers higher resolution (1024 vs. 256 positions) and an I2C interface, while the AD5170 uses a simpler up/down interface.
Are the AD5175BRMZ-10 and AD5170BRM10 pin-compatible?
No. The AD5175BRMZ-10 is supplied in a 10-lead MSOP package, while the AD5170BRM10 is supplied in a 10-lead MSOP package as well, but the pin functions differ due to different interface types (I2C vs. up/down). They are not pin-compatible and cannot be used as drop-in replacements without circuit redesign.
What is the resolution of each digital potentiometer?
The AD5175BRMZ-10 has 1024 positions (10-bit resolution). The AD5170BRM10 has 256 positions (8-bit resolution).
What control interfaces do these devices use?
The AD5175BRMZ-10 uses a 2-wire I2C-compatible serial interface. The AD5170BRM10 uses a 3-wire up/down (increment/decrement) interface with a chip select pin.
Do both devices have nonvolatile memory for wiper position storage?
Yes. Both the AD5175BRMZ-10 and the AD5170BRM10 include nonvolatile memory (EEPROM) that retains the wiper setting after power is removed.
What is the nominal end-to-end resistance of each part?
Both the AD5175BRMZ-10 and the AD5170BRM10 have a nominal end-to-end resistance of 10 kΩ, as indicated by the "10" suffix in their part numbers.
What are the operating voltage ranges for these digital potentiometers?
The AD5175BRMZ-10 operates from a single 2.7 V to 5.5 V supply. The AD5170BRM10 operates from a single 2.7 V to 5.5 V supply. Both are specified for operation over the extended industrial temperature range of −40°C to +125°C.
Can the AD5170BRM10 be replaced by the AD5175BRMZ-10 in an existing design?
No, not directly. Although both are 10 kΩ digital potentiometers in 10-lead MSOP packages, they differ in resolution (256 vs. 1024 positions), interface type (up/down vs. I2C), and pinout. A replacement requires firmware changes for the new interface protocol and may require PCB layout changes due to pin function differences.